Since they are real-time systems collecting timed information, Q›TAR Systems need to be able to ensure they have the correct time. Most computer clocks themselves are not very accurate, and are not satisfactory as the sole source of the current time.

If the accuracy of the time depends on manual intervention, such as a computer user checking the computer time regularly and correcting it when it is wrong, it is open to human error. It may not be done, due to forgetfulness, absence ill or on holiday, or working off-site. Worse, it may be done wrongly - the time may be set wrong by only a second or two (e.g. if using the speaking clock), by a few minutes (e.g. by referring to an incorrect clock or watch), by an hour or two (at Daylight Saving changeover), or by 12 hours (e.g. entering 2:00 instead of 14:00).

The only way of ensuring the time IS always set correctly is by automating the time correction by connecting the computer to a source of accurate time.

P & Q can supply Radio Controlled Clocks, which use a very accurate time signal transmitted from strategic points around the globe.

Alternatively, if your computer or file system is connected to the Internet, a variety of programs are available to retrieve the accurate time from the one or more Time Servers available via the World Wide Web.